Effect of stabilization annealing on SCC susceptibility of β-annealed Ti-6Al-4V alloy in 0.6 M NaCl solution

The effect of stabilization annealing on the stress corrosion cracking (SCC) susceptibility of β-annealed Ti-6Al-4V (Ti64) alloy was examined in an aqueous 0.6 M NaCl solution under various applied potentials of +0.1, -0.05 and -0.1 V vs E corr , respectively, at a strain rate of 10 -6 s -1 . The st...

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Published inMetals and materials international Vol. 24; no. 1; pp. 101 - 111
Main Authors Jeong, Daeho, Park, Jiho, Ahn, Soojin, Sung, Hyokyung, Kwon, Yongnam, Kim, Sangshik
Format Journal Article
LanguageEnglish
Published Seoul The Korean Institute of Metals and Materials 01.01.2018
Springer Nature B.V
대한금속·재료학회
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ISSN1598-9623
2005-4149
DOI10.1007/s12540-017-7303-7

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Summary:The effect of stabilization annealing on the stress corrosion cracking (SCC) susceptibility of β-annealed Ti-6Al-4V (Ti64) alloy was examined in an aqueous 0.6 M NaCl solution under various applied potentials of +0.1, -0.05 and -0.1 V vs E corr , respectively, at a strain rate of 10 -6 s -1 . The stabilization annealing substantially improved the resistance to SCC of β-annealed Ti64 alloy in 0.6 M NaCl solution under cathodic applied potentials, while the effect was marginal under an anodic applied potential. It was also noted that the areal fraction between ductile and brittle fracture of β-annealed Ti64 specimens, which were slow strain rate tested in 0.6 M NaCl solution, varied with stabilization annealing and applied potentials. The effect of stabilization annealing on the SCC behavior of β-annealed Ti64 alloy in SCC-causing environment was discussed based on the micrographic and fractographic observation.
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ISSN:1598-9623
2005-4149
DOI:10.1007/s12540-017-7303-7